#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
void
display(void)
{
        glClear(GL_COLOR_BUFFER_BIT);
        glutSolidSphere(0.5,20,20);
        glFlush();
}

void
init(void)
{
        glClearColor(0.0,0.0,0.0,1.0);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
}

int
main(int argc, char** argv)
{
        glutInit(&argc, argv);
        glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
        glutInitWindowSize(250,250);
        glutInitWindowPosition(100,100);
        glutCreateWindow("Hello There Circle");
        init();
        glutDisplayFunc(display);
        glutMainLoop();
        return 0;
}
